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低β四分之一波长腔中的束流偏转的分析性研究(英文)

张聪 赵红卫 何源

张聪, 赵红卫, 何源. 低β四分之一波长腔中的束流偏转的分析性研究(英文)[J]. 原子核物理评论, 2010, 27(4): 436-439. doi: 10.11804/NuclPhysRev.27.04.436
引用本文: 张聪, 赵红卫, 何源. 低β四分之一波长腔中的束流偏转的分析性研究(英文)[J]. 原子核物理评论, 2010, 27(4): 436-439. doi: 10.11804/NuclPhysRev.27.04.436
ZHANG Cong, ZHAO Hong-wei, HE Yuan. Analytical Study on Beam Steering in Low-β Superconducting Quarter Wave Resonators[J]. Nuclear Physics Review, 2010, 27(4): 436-439. doi: 10.11804/NuclPhysRev.27.04.436
Citation: ZHANG Cong, ZHAO Hong-wei, HE Yuan. Analytical Study on Beam Steering in Low-β Superconducting Quarter Wave Resonators[J]. Nuclear Physics Review, 2010, 27(4): 436-439. doi: 10.11804/NuclPhysRev.27.04.436

低β四分之一波长腔中的束流偏转的分析性研究(英文)

doi: 10.11804/NuclPhysRev.27.04.436

Analytical Study on Beam Steering in Low-β Superconducting Quarter Wave Resonators

  • 摘要: 目前加速速度范围在0.01 c—0.3 c 的粒子的超导腔主要使用四分之一波长腔型。用于不同加速器上的频率范围在50—240 MHz 的四分之一波长腔在建造或者预研中。这种腔型的一个不足是其横向电磁成分会造成束流偏转效应,从而导致发射度的增长和束流的溢漏, 在强流重离子加速器中这种效应尤为严重。对中国科学院近代物理研究所超导直线加速器中的频率为80.5和161 MHz的四分之一波长腔的偏转效应进行了分析,计算结果表明,在四分之一腔体的设计时需要考虑到束流偏转的修正, 这通常需要在漂移管端面上削适当大小的倾角来实现。Superconducting(SC) cavities currently used for acceleration of ions in the velocity range from 0.01 cto 0.3 c are based frequently on quarterwave resonators(QWR). Various types of QWR cavities across a frequency extent from 50 to 240 MHz have been constructed or are proposed for numerous applications. A drawback of this kind of cavities is the beam steering caused by transverse magnetic and electric field components, which can creat emittance growth. In this paper, the analytical studies on beam steering in quarter wave resonator of frequency=80.5 and 161 MHz of the SC linac has been done in Institute of Modern Physics, Chinese Academy of Sciences, the calculated results have told us that the correction for beam deflection should be a consideration during the design of the QWR cavity, which generally involves the shaping the inner drift tube.
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  • 收稿日期:  1900-01-01
  • 修回日期:  1900-01-01
  • 刊出日期:  2010-12-20

低β四分之一波长腔中的束流偏转的分析性研究(英文)

doi: 10.11804/NuclPhysRev.27.04.436

摘要: 目前加速速度范围在0.01 c—0.3 c 的粒子的超导腔主要使用四分之一波长腔型。用于不同加速器上的频率范围在50—240 MHz 的四分之一波长腔在建造或者预研中。这种腔型的一个不足是其横向电磁成分会造成束流偏转效应,从而导致发射度的增长和束流的溢漏, 在强流重离子加速器中这种效应尤为严重。对中国科学院近代物理研究所超导直线加速器中的频率为80.5和161 MHz的四分之一波长腔的偏转效应进行了分析,计算结果表明,在四分之一腔体的设计时需要考虑到束流偏转的修正, 这通常需要在漂移管端面上削适当大小的倾角来实现。Superconducting(SC) cavities currently used for acceleration of ions in the velocity range from 0.01 cto 0.3 c are based frequently on quarterwave resonators(QWR). Various types of QWR cavities across a frequency extent from 50 to 240 MHz have been constructed or are proposed for numerous applications. A drawback of this kind of cavities is the beam steering caused by transverse magnetic and electric field components, which can creat emittance growth. In this paper, the analytical studies on beam steering in quarter wave resonator of frequency=80.5 and 161 MHz of the SC linac has been done in Institute of Modern Physics, Chinese Academy of Sciences, the calculated results have told us that the correction for beam deflection should be a consideration during the design of the QWR cavity, which generally involves the shaping the inner drift tube.

English Abstract

张聪, 赵红卫, 何源. 低β四分之一波长腔中的束流偏转的分析性研究(英文)[J]. 原子核物理评论, 2010, 27(4): 436-439. doi: 10.11804/NuclPhysRev.27.04.436
引用本文: 张聪, 赵红卫, 何源. 低β四分之一波长腔中的束流偏转的分析性研究(英文)[J]. 原子核物理评论, 2010, 27(4): 436-439. doi: 10.11804/NuclPhysRev.27.04.436
ZHANG Cong, ZHAO Hong-wei, HE Yuan. Analytical Study on Beam Steering in Low-β Superconducting Quarter Wave Resonators[J]. Nuclear Physics Review, 2010, 27(4): 436-439. doi: 10.11804/NuclPhysRev.27.04.436
Citation: ZHANG Cong, ZHAO Hong-wei, HE Yuan. Analytical Study on Beam Steering in Low-β Superconducting Quarter Wave Resonators[J]. Nuclear Physics Review, 2010, 27(4): 436-439. doi: 10.11804/NuclPhysRev.27.04.436

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